Publications associées à Dipolar Antiferromagnetism and Quantum Criticality in LiErF4

Charge multipole correlations and order in Cs2TaCl6

Henrik Moodysson Rønnow, Ivica Zivkovic, Jian Rui Soh, Jana Pásztorová

We examine the role of charge, structural, and spin degrees of freedom in the previously poorly understood phase transition in the 5d1 transition-metal double perovskite Cs2TaCl6 using a combination of computational and experimental techniques. Our heat ca ...

AMER PHYSICAL SOC2023

Small-angle neutron scattering study of mesoscale magnetic disordering and skyrmion phase suppression in the frustrated chiral magnet Co6.75Zn6.75Mn6.51

Henrik Moodysson Rønnow, Jonathan White

Co-Zn-Mn chiral cubic magnets display versatile magnetic skyrmion phases, including equilibrium phases stable far above and far below room temperature, and the facile creation of robust far-from-equilibrium skyrmion states. In this system, compositional di ...

INT UNION CRYSTALLOGRAPHY2022

Thermal critical points from competing singlet formations in fully frustrated bilayer antiferromagnets

Frédéric Mila, Antoine Yves Dimitri Fache

We examine the ground-state phase diagram and thermal phase transitions in a plaquettized fully frustrated bilayer spin-1/2 Heisenberg model. Based on a combined analysis from sign-problem free quantum Monte Carlo simulations, perturbation theory, and free ...

AMER PHYSICAL SOC2022

Thermal Ising Transition in the Spin-1/2 J(1)-J(2) Heisenberg Model

Frédéric Mila, Olivier Clément Romain Gauthé

Using an SU(2) invariant finite-temperature tensor network algorithm, we provide strong numerical evidence in favor of an Ising transition in the collinear phase of the spin-1/2 J(1)-J(2) Heisenberg model on the square lattice. In units of J(2), the critic ...

AMER PHYSICAL SOC2022

A quantum magnetic analogue to the critical point of water

Henrik Moodysson Rønnow, Frédéric Mila, Bruce Normand, Ellen Fogh, Ludger Weber, Mohamed Zayed, Julio Antonio Larrea Jiménez, Kazimierz Conder

At the liquid-gas phase transition in water, the density has a discontinuity at atmospheric pressure; however, the line of these first-order transitions defined by increasing the applied pressure terminates at the critical point(1), a concept ubiquitous in ...

2021

Artificial out-of-plane Ising antiferromagnet on the kagome lattice with very small farther-neighbor couplings

Frédéric Mila, Jeanne Colbois, Xueqiao Wang

Despite their simple formulation, short-range classical antiferromagnetic Ising models on frustrated lattices give rise to exotic phases of matter, in particular, due to their macroscopic ground-state degeneracy. Recent experiments on artificial spin syste ...

AMER PHYSICAL SOC2021

Ferrimagnetic 120 degrees magnetic structure in Cu2OSO4

Henrik Moodysson Rønnow, Arnaud Magrez, Ivica Zivkovic, Nicola Casati, Helmuth Berger, Lin Yang, Gregory Scott Tucker, Virgile Yves Favre, Romain Sibille

We report magnetic properties of a 3d(9) (Cu2+) magnetic insulator Cu2OSO4 measured on both powder and single crystal. The magnetic atoms of this compound form layers whose geometry can be described either as a system of chains coupled through dimers or as ...

AMER PHYSICAL SOC2020

Journal of Physics: Conference Series High-pressure specific heat technique to uncover novel states of quantum matter

Henrik Moodysson Rønnow, Julio Antonio Larrea Jiménez

AC-specific heat measurements remain as the foremost thermodynamic experimental method to underpin phase transitions in tiny samples. However, its performance under combined extreme conditions of high-pressure, very low temperature and intense magnetic fie ...

IOP PUBLISHING LTD2020

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Dipolar Antiferromagnetism and Quantum Criticality in LiErF4

Field-controlled multicritical behavior and emergent universality in fully frustrated quantum magnets

Charge multipole correlations and order in Cs2TaCl6

Small-angle neutron scattering study of mesoscale magnetic disordering and skyrmion phase suppression in the frustrated chiral magnet Co6.75Zn6.75Mn6.51

Thermal critical points from competing singlet formations in fully frustrated bilayer antiferromagnets

Thermal Ising Transition in the Spin-1/2 J(1)-J(2) Heisenberg Model

A quantum magnetic analogue to the critical point of water

Artificial out-of-plane Ising antiferromagnet on the kagome lattice with very small farther-neighbor couplings

Ferrimagnetic 120 degrees magnetic structure in Cu2OSO4

Journal of Physics: Conference Series High-pressure specific heat technique to uncover novel states of quantum matter

First-order Neel to columnar valence bond solid transition in a model square-lattice S=1 antiferromagnet

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Chattez avec Graph Search

Charge multipole correlations and order in Cs2TaCl6

A quantum magnetic analogue to the critical point of water

Field-controlled multicritical behavior and emergent universality in fully frustrated quantum magnets

Thermal critical points from competing singlet formations in fully frustrated bilayer antiferromagnets

Small-angle neutron scattering study of mesoscale magnetic disordering and skyrmion phase suppression in the frustrated chiral magnet Co6.75Zn6.75Mn6.51

Artificial out-of-plane Ising antiferromagnet on the kagome lattice with very small farther-neighbor couplings

Thermal Ising Transition in the Spin-1/2 J(1)-J(2) Heisenberg Model

Ferrimagnetic 120 degrees magnetic structure in Cu2OSO4

Journal of Physics: Conference Series High-pressure specific heat technique to uncover novel states of quantum matter

First-order Neel to columnar valence bond solid transition in a model square-lattice S=1 antiferromagnet